Re: status update 28Jan04

Colleen,
 
Two or three months ago I posted an abstract of an article (to Iris-talk, I believe)  I found on the Internet describing in the kind of detail you are seeking the synthesis of anthocyanins in Gladiolus.  Glads and bearded Irises have some overlap on the specific anthocyanins, but the redder, more typical pigments of Gladiolus differ only in a few ways from those we have anyway.
 
The authors suggested the synthesis process has about twenty steps--or more--which I interpret to mean that each of those process steps requires a particular enzyme or catalyst.  Each one of those would require a section of code on the chromosomal DNA -- or possibly on extra-nuclear RNA.  The reasons I posted it included the suggestion that the genetics of violet/blue pigments in Irises is far from the simple one we normally assume, and also to ask the question, "How can we get this kind of research going for our irises?"
 
If you do get the copy of the article on pigments you asked about, could you please e-mail me a copy?  I'm not very well grounded in organic chemistry, but have some notion of what is being discussed.
 
Neil Mogensen   z 7  western NC

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